feat: add Windows edge node launcher

DEPLOYMENT.md

@@ -52,6 +52,22 @@ nvidia-smi
 
 If browser or network tests run from another machine, open the Windows firewall for ports 5173, 8080, 1935, and 8888.
 
+## Windows edge node launcher
+
+Build and start an edge node from a Windows edge machine:
+
+```powershell
+powershell -ExecutionPolicy Bypass -File .\edge-agent\start-edge.ps1 -Build -OriginUrl http://<origin-host>:8080 -NodeId edge-win-01 -Region default -HlsPort 8889 -ApiPort 9997
+```
+
+For normal subsequent starts, omit `-Build`:
+
+```powershell
+powershell -ExecutionPolicy Bypass -File .\edge-agent\start-edge.ps1 -OriginUrl http://<origin-host>:8080 -NodeId edge-win-01 -Region default -HlsPort 8889 -ApiPort 9997
+```
+
+The launcher sets the StreamCore edge environment variables, starts the Windows edge-agent executable, stores runtime data under `ProgramData\StreamCore\edge\<node-id>` by default, and writes logs to that node data directory. The edge agent then manages its embedded MediaMTX edge process.
+
 ## Edge node scripts
 
 ```cmd